Yeah - the plugin is called Camel Audio Alchemy - www.camelaudio.com
Basically the patch was playing a vocal sample, in granular mode, with a low amount of grain and size to give it a choppy feel. Massive reverb send to turn it into a wash, then a low pass filter while moving the sample position knob to change the point of sample being played which affected the pitch. Then I just did some automation passes until I got the result I was happy with and bounced it down into a track.
The sub bassy sample at the start is an acousmatic recording of a truck that I cleaned up and gave a faster attack to. Alchemy allows you to use 4 audio sources/oscillators at once.
Its an incredibly powerful VST and is fast becoming my go to synth for anything sample based, but the VA aspect of it is very strong too. Check out the 21 day trial - fully functional and I reckon after you try, youll want to buy